CVE-2026-32293Network attack vector

Service denial via unchecked provisioning certificates

Published Mar 17, 2026 · Updated Mar 17, 2026

Improper certificate validation in GL.iNet Comet firmware before 1.7.2 allows man-in-the-middle attackers to interrupt cloud access. During boot provisioning, the device accepts client and CA certificates from its cloud connection without authenticating the peer or validating the returned certificate chain. An attacker positioned on that network path can supply fraudulent certificates, after which the device persistently fails MQTT authentication to the legitimate KVM cloud service.

CVSS severity6.3
Medium
EPSS probability0.33%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper certificate validation in GL.iNet Comet firmware before 1.7.2 allows man-in-the-middle attackers to interrupt cloud access. During boot provisioning, the device accepts client and CA certificates from its cloud connection without authenticating the peer or validating the returned certificate chain. An attacker positioned on that network path can supply fraudulent certificates, after which the device persistently fails MQTT authentication to the legitimate KVM cloud service.

The record

CVE
CVE-2026-32293
Published
Mar 17, 2026
Updated
Mar 17, 2026
Vendor
GL.iNet
Product
Comet (GL-RM1)
Classifications
CWE-295, T1557
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 17, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 17, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <1.7.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

GL.iNet · Comet (GL-RM1)version=0 <1.7.2

Published CVSS scores

6.3Cybersecurity and Infrastructure Security AgencyCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
3.7Cybersecurity and Infrastructure Security AgencyCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-295Improper Certificate Validation
T1557Adversary-in-the-Middle

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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